Patents by Inventor Ravi Silva

Ravi Silva has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20260209834
    Abstract: The invention relates to nucleic acid detection, and particularly, although not exclusively, to electrochemical methods for detecting target nucleic acid sequences in a sample obtained from a subject. The nucleic acid detection methods of the invention can also be used to diagnose or prognose both infectious and non-infectious diseases in a subject, or to determine whether a pathogen is drug resistant. The invention extends to apparatus for performing improved nucleic acid detection using electrochemical methods.
    Type: Application
    Filed: November 14, 2023
    Publication date: July 23, 2026
    Inventors: Khushboo BORAH SLATER, Johnjoe MCFADDEN, Roberto LA RAGIONE, Ravi SILVA, Muhammad AHMAD, Aurore POIRIER
  • Publication number: 20230067839
    Abstract: The disclosure provides an apparatus for depositing poly(p-xylylene) onto a component. The apparatus comprises a deposition chamber configured to receive a component to be coated therein; an electrical power supply; a platen, disposed inside the deposition chamber and comprising an electrically conductive material, wherein the platen is electrically connected to the electrical power supply and configured to support the component; a monomer reservoir, configured to receive a monomer of poly(p-xylylene) therein; a monomer conduit extending between the monomer reservoir and the deposition chamber; and a heating means configured to heat the monomer reservoir and the monomer conduit to a temperature of between 25 and 250° C.
    Type: Application
    Filed: December 15, 2020
    Publication date: March 2, 2023
    Inventors: Ravi Silva, Christopher Toby Gibb Smith, Jose Anguita, Michal Delkowski
  • Patent number: 10843812
    Abstract: Components having fibre-reinforced composite structures are disclosed. The component comprises a plurality of structural fibres embedded in a cured matrix material and a plurality of nanostructures such as carbon nanotubes extending from one or more of the structural fibres. In some embodiments a density of the nanostructures is at least 107 nanostructures per cm2 of surface area of the one or more structural fibres. In some embodiments, the nanostructures extend from an outer fibre proximal to an outer surface of the component but not from an inner fibre distal from the outer surface. In some embodiments the one or more structural fibres from which the nanostructures extend are free of a sizing agent.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 24, 2020
    Assignees: SHORT BROTHERS PLC, UNIVERSITY OF SURREY
    Inventors: Paolo Ballocchi, Philip Jenkins, Ian Hamerton, Ravi Silva, Thomas Pozegic
  • Patent number: 10550232
    Abstract: An article comprises a carbon fibre reinforced plastic (CFRP) substrate, a buffer layer disposed adjacent the substrate, the buffer layer comprising a poly(para-xylylene) polymer; and a moisture barrier coating disposed adjacent the buffer layer.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 4, 2020
    Assignees: University of Surrey, Airbus Defence and Space GMBH
    Inventors: Jose Virgilio Anguita Rodriguez, Ravi Silva, Ian Hamerton, Winnie Tang, Thomas Theo Stute
  • Publication number: 20180265217
    Abstract: Components having fibre-reinforced composite structures are disclosed. The component comprises a plurality of structural fibres embedded in a cured matrix material and a plurality of nanostructures such as carbon nanotubes extending from one or more of the structural fibres. In some embodiments a density of the nanostructures is at least 107 nanostructures per cm2 of surface area of the one or more structural fibres. In some embodiments, the nanostructures extend from an outer fibre proximal to an outer surface of the component but not from an inner fibre distal from the outer surface. In some embodiments the one or more structural fibres from which the nanostructures extend are free of a sizing agent.
    Type: Application
    Filed: December 8, 2015
    Publication date: September 20, 2018
    Inventors: Paolo BALLOCCHI, Philip JENKINS, Ian HAMERTON, Ravi SILVA, Thomas POZEGIC
  • Publication number: 20160009876
    Abstract: An article comprises a carbon fibre reinforced plastic (CFRP) substrate, a buffer layer disposed adjacent the substrate, the buffer layer comprising a poly(para-xylylene) polymer; and a moisture barrier coating disposed adjacent the buffer layer.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 14, 2016
    Applicants: University of Surrey, Astrium limited
    Inventors: Jose Virgilio Anguita RODRIGUEZ, Ravi SILVA, Ian HAMERTON-RUSKIN, Winnie TANG, Thomas Theo STUTE
  • Patent number: 7592191
    Abstract: A field emission backplate formed by laser crystallizing of an area of amorphous semiconductor based material. Emitter sites result from the rough surface texture caused by the crystallization process. The crystallization may be localized using laser interferometry, and profiled emitter tips grown on the localized crystalline areas. Such backplates can be used in field emission devices emitting into either a vacuum or a wide band gap light-emitting polymer. Furthermore, a backplate having self-aligned gates can be formed by depositing an insulator layer and a metal layer over the emitter tips, removing the top of the metal layer and etching away the insulator, leaving each tip surrounded by a metal rim. A planarizing agent can be used to refine this process.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: September 22, 2009
    Assignee: The University Court of the University of Dundee
    Inventors: Mervyn John Rose, Ravi Silva, John Shannon
  • Patent number: 7304420
    Abstract: A field emission device having improved properties and which finds use in display devices, such as a flat panel displays. Known devices and displays suffer from problems such as complexity of fabrication and limited color gamut. The present device provides a field emission backplate which is made from a substantially semiconductor based material and has a plurality of grown tips. The device also includes at least one electro-luminescent or photo-luminescent material having a fluorescent material such as a fluorescent dye doped material chemically attached thereto.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 4, 2007
    Assignee: The University Court of the University of Dundee
    Inventors: Mervyn John Rose, Ravi Silva, John Shannon, Janos Peter Hajto
  • Publication number: 20050179366
    Abstract: A field emission device having improved properties and which finds use in display devices, such as a flat panel displays. Known devices and displays suffer from problems such as complexity of fabrication and limited color gamut. The present device provides a field emission backplate which is made from a substantially semiconductor based material and has a plurality of grown tips. The device also includes at least one electro-luminescent or photo-luminescent material having a fluorescent material such as a fluorescent dye doped material chemically attached thereto.
    Type: Application
    Filed: December 17, 2004
    Publication date: August 18, 2005
    Inventors: Mervyn Rose, Ravi Silva, John Shannon, Janos Hajto
  • Publication number: 20040197942
    Abstract: A field emission backplate formed by laser crystallizing of an area of amorphous semiconductor based material. Emitter sites result from the rough surface texture caused by the crystallization process. The crystallization may be localized using laser interferometry, and profiled emitter tips grown on the localized crystalline areas. Such backplates can be used in field emission devices emitting into either a vacuum or a wide band gap light-emitting polymer. Furthermore, a backplate having self-aligned gates can be formed by depositing an insulator layer and a metal layer over the emitter tips, removing the top of the metal layer and etching away the insulator, leaving each tip surrounded by a metal rim. A planarizing agent can be used to refine this process.
    Type: Application
    Filed: February 6, 2004
    Publication date: October 7, 2004
    Inventors: Mervyn John Rose, Ravi Silva, John Shannon